The radii of two metallic spheres are 5 cm and 10 cm and both carry equal charge of `75 mu C`. If the two spheres are shorted then charge will be transferred-

Options

A. `25mu C` from smaller to bigger
B. `25mu C` from bigger to smaller
C. `5mu C` from smaller to bigger
D. `50mu C` from bigger to smaller

Answer

A

Explanation

`Q_(1)= Q_(1 ) + Q_(2)= 150mu C`
`(Q_(1))/(Q_(2)) = (C_(1))/(C_(2))= (1)/(2) rArr Q._(1) = 50mu C`
`Q._(2)= 100mu C`
`25muC` charge will flow from smaller to bigger sphere